MENACE MANUAL: Dark Creeper

My players hit the main platform of the excavator yesterday as Hellion threw everything against them including Kulgara, Draigs and the Dark Creeper types.  Creepers below.

DARK CREEEPER
Small humanoid (fey), neutral evil

Armour Class 16 (leather)
Hit Points 40 (8d6+16)
Speed 30ft.

STR	DEX	CON
11 (+2)	18 (+4)	14 (+2)
INT	WIS	CHA
14 (+2)	13 (+1)	13 (+3)

Skills Stealth +4
Senses darkvision 60 ft., passive Perception 9
Languages Common, Elvish
Challenge 2 (450 XP)

Curse the Day. Dark ones have disadvantage in full daylight or similar affects. They also have disadvantage on saves related to blindness when a bright light is the cause.

Dark Step. The creeper can take the Disengage or Hide action as a bonus action on each of its turns.

Sneak Attack. The dark creeper deals an extra 1d6 damage on melee and ranged attacks against any target it has combat advantage against.

ACTIONS
Wicked kukri. Melee Weapon Attack: +5 to hit, reach 5 ft., one target.
Hit: 6 (1d6 + 4) slashing damage.

Jagged Dagger. Ranged Weapon Attack: +6 to hit, range 20/60 ft.,
Hit: 6 (1d6 + 4) piercing damage.

REACTIONS
Killing Dark. When slain, a dark creeper explodes in a spout of darkness. All creatures within 5 ft must make DC 11 Dexterity save or become blinded.

Gear. Apart from daggers each carries an unholy symbol of Hellion (10gp)

DESCRIPTION
Black rags wrap this small humanoid from head to toe, leaving only its hands, its cloven feet and pale white nose visible.